The independent variable is the variable or the factor in an investigation which is manipulated or change in the experiment and affects the dependent variable and produces a various result.
In this investigation, there are different brands of the floor was are the independent variable as they are changed to see the effect on the scratches on the floor on 20 tiles for each brand.
The variable that is the independent one is the one that Jasmine is changing. In this case, it is the amount of solar panel covered, via a piece of paper.
